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authorBrokenTalentsFun CI <ci@brokentalents.fun>2018-06-08 19:36:11 +0200
committerschneefux <schneefux+commit@schneefux.xyz>2018-12-13 17:09:16 +0100
commit10cf870629e860616899848d7f1c849d0b810342 (patch)
tree4c7e2831f3857c07681fefee1611d1c49f0ef25b /dist/workbox-v3.2.0/workbox-range-requests.dev.js
parent505a67dc32206a0c603258d856fcbe00e53fc1f5 (diff)
downloadbrokentalents-10cf870629e860616899848d7f1c849d0b810342.tar.gz
brokentalents-10cf870629e860616899848d7f1c849d0b810342.zip
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+this.workbox = this.workbox || {};
+this.workbox.rangeRequests = (function (exports,WorkboxError_mjs,assert_mjs,logger_mjs) {
+'use strict';
+
+try {
+ self.workbox.v['workbox:range-requests:3.2.0'] = 1;
+} catch (e) {} // eslint-disable-line
+
+/*
+ Copyright 2017 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @param {Blob} blob A source blob.
+ * @param {number|null} start The offset to use as the start of the
+ * slice.
+ * @param {number|null} end The offset to use as the end of the slice.
+ * @return {Object} An object with `start` and `end` properties, reflecting
+ * the effective boundaries to use given the size of the blob.
+ *
+ * @private
+ */
+function calculateEffectiveBoundaries(blob, start, end) {
+ {
+ assert_mjs.assert.isInstance(blob, Blob, {
+ moduleName: 'workbox-range-requests',
+ funcName: 'calculateEffectiveBoundaries',
+ paramName: 'blob'
+ });
+ }
+
+ const blobSize = blob.size;
+
+ if (end > blobSize || start < 0) {
+ throw new WorkboxError_mjs.WorkboxError('range-not-satisfiable', {
+ size: blobSize,
+ end,
+ start
+ });
+ }
+
+ let effectiveStart;
+ let effectiveEnd;
+
+ if (start === null) {
+ effectiveStart = blobSize - end;
+ effectiveEnd = blobSize;
+ } else if (end === null) {
+ effectiveStart = start;
+ effectiveEnd = blobSize;
+ } else {
+ effectiveStart = start;
+ // Range values are inclusive, so add 1 to the value.
+ effectiveEnd = end + 1;
+ }
+
+ return {
+ start: effectiveStart,
+ end: effectiveEnd
+ };
+}
+
+/*
+ Copyright 2017 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @param {string} rangeHeader A Range: header value.
+ * @return {Object} An object with `start` and `end` properties, reflecting
+ * the parsed value of the Range: header. If either the `start` or `end` are
+ * omitted, then `null` will be returned.
+ *
+ * @private
+ */
+function parseRangeHeader(rangeHeader) {
+ {
+ assert_mjs.assert.isType(rangeHeader, 'string', {
+ moduleName: 'workbox-range-requests',
+ funcName: 'parseRangeHeader',
+ paramName: 'rangeHeader'
+ });
+ }
+
+ const normalizedRangeHeader = rangeHeader.trim().toLowerCase();
+ if (!normalizedRangeHeader.startsWith('bytes=')) {
+ throw new WorkboxError_mjs.WorkboxError('unit-must-be-bytes', { normalizedRangeHeader });
+ }
+
+ // Specifying multiple ranges separate by commas is valid syntax, but this
+ // library only attempts to handle a single, contiguous sequence of bytes.
+ // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range#Syntax
+ if (normalizedRangeHeader.includes(',')) {
+ throw new WorkboxError_mjs.WorkboxError('single-range-only', { normalizedRangeHeader });
+ }
+
+ const rangeParts = /(\d*)-(\d*)/.exec(normalizedRangeHeader);
+ // We need either at least one of the start or end values.
+ if (rangeParts === null || !(rangeParts[1] || rangeParts[2])) {
+ throw new WorkboxError_mjs.WorkboxError('invalid-range-values', { normalizedRangeHeader });
+ }
+
+ return {
+ start: rangeParts[1] === '' ? null : Number(rangeParts[1]),
+ end: rangeParts[2] === '' ? null : Number(rangeParts[2])
+ };
+}
+
+/**
+ * Given a `Request` and `Response` objects as input, this will return a
+ * promise for a new `Response`.
+ *
+ * @param {Request} request A request, which should contain a Range:
+ * header.
+ * @param {Response} originalResponse An original response containing the full
+ * content.
+ * @return {Promise<Response>} Either a `206 Partial Content` response, with
+ * the response body set to the slice of content specified by the request's
+ * `Range:` header, or a `416 Range Not Satisfiable` response if the
+ * conditions of the `Range:` header can't be met.
+ *
+ * @memberof workbox.rangeRequests
+ */
+let createPartialResponse = (() => {
+ var _ref = babelHelpers.asyncToGenerator(function* (request, originalResponse) {
+ try {
+ {
+ assert_mjs.assert.isInstance(request, Request, {
+ moduleName: 'workbox-range-requests',
+ funcName: 'createPartialResponse',
+ paramName: 'request'
+ });
+
+ assert_mjs.assert.isInstance(originalResponse, Response, {
+ moduleName: 'workbox-range-requests',
+ funcName: 'createPartialResponse',
+ paramName: 'originalResponse'
+ });
+ }
+
+ const rangeHeader = request.headers.get('range');
+ if (!rangeHeader) {
+ throw new WorkboxError_mjs.WorkboxError('no-range-header');
+ }
+
+ const boundaries = parseRangeHeader(rangeHeader);
+ const originalBlob = yield originalResponse.blob();
+
+ const effectiveBoundaries = calculateEffectiveBoundaries(originalBlob, boundaries.start, boundaries.end);
+
+ const slicedBlob = originalBlob.slice(effectiveBoundaries.start, effectiveBoundaries.end);
+ const slicedBlobSize = slicedBlob.size;
+
+ const slicedResponse = new Response(slicedBlob, {
+ // Status code 206 is for a Partial Content response.
+ // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/206
+ status: 206,
+ statusText: 'Partial Content',
+ headers: originalResponse.headers
+ });
+
+ slicedResponse.headers.set('Content-Length', slicedBlobSize);
+ slicedResponse.headers.set('Content-Range', `bytes ${effectiveBoundaries.start}-${effectiveBoundaries.end - 1}/` + originalBlob.size);
+
+ return slicedResponse;
+ } catch (error) {
+ {
+ logger_mjs.logger.warn(`Unable to construct a partial response; returning a ` + `416 Range Not Satisfiable response instead.`);
+ logger_mjs.logger.groupCollapsed(`View details here.`);
+ logger_mjs.logger.unprefixed.log(error);
+ logger_mjs.logger.unprefixed.log(request);
+ logger_mjs.logger.unprefixed.log(originalResponse);
+ logger_mjs.logger.groupEnd();
+ }
+
+ return new Response('', {
+ status: 416,
+ statusText: 'Range Not Satisfiable'
+ });
+ }
+ });
+
+ return function createPartialResponse(_x, _x2) {
+ return _ref.apply(this, arguments);
+ };
+})();
+
+/*
+ Copyright 2016 Google Inc. All Rights Reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ http://www.apache.org/licenses/LICENSE-2.0
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * The range request plugin makes it easy for a request with a 'Range' header to
+ * be fulfilled by a cached response.
+ *
+ * It does this by intercepting the `cachedResponseWillBeUsed` plugin callback
+ * and returning the appropriate subset of the cached response body.
+ *
+ * @memberof workbox.rangeRequests
+ */
+class Plugin {
+ /**
+ * @param {Object} options
+ * @param {Request} options.request The original request, which may or may not
+ * contain a Range: header.
+ * @param {Response} options.cachedResponse The complete cached response.
+ * @return {Promise<Response>} If request contains a 'Range' header, then a
+ * new response with status 206 whose body is a subset of `cachedResponse` is
+ * returned. Otherwise, `cachedResponse` is returned as-is.
+ *
+ * @private
+ */
+ cachedResponseWillBeUsed({ request, cachedResponse }) {
+ return babelHelpers.asyncToGenerator(function* () {
+ // Only return a sliced response if there's something valid in the cache,
+ // and there's a Range: header in the request.
+ if (cachedResponse && request.headers.has('range')) {
+ return yield createPartialResponse(request, cachedResponse);
+ }
+
+ // If there was no Range: header, or if cachedResponse wasn't valid, just
+ // pass it through as-is.
+ return cachedResponse;
+ })();
+ }
+}
+
+/*
+ Copyright 2017 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/*
+ Copyright 2017 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+exports.createPartialResponse = createPartialResponse;
+exports.Plugin = Plugin;
+
+return exports;
+
+}({},workbox.core._private,workbox.core._private,workbox.core._private));
+
+//# sourceMappingURL=workbox-range-requests.dev.js.map